Earl p



(No Model.)

E. P. SEDGWICK.

SPRING HINGE.

rammednmzz, 1896.

UNITED STATES PATENT ()FFICE.

EARL P. SEDGlVICK, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE CHICAGO IIARDW'ARE MANUFACTURING COMPANY, OF SAME PLACE.

SPRING-HINGE.

SPECIFICATION forming part of Letters Patent No. 573,713, dated December 22, 1896.

Application filed August 26, 1895. Serial No. 560,499. (No model.)

To aZZ whom, it may concern:

Be it known that I, EARL P. SEDGWICK, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Spring-Hinges, of which the following is a specification.

This invention relates to a double-swing spring-hinge, such as is used for doors swinging both ways; and the object of the invention is to provide means for bringing the door to rest at the proper place after being opened in either direction.

The invention may be applied to a variety of kinds of spring-hinges, and I have shown it in connection with a simple form of springhinge composed of two single leaves, the door-leaf containing a spring-barrel, through the axis of which the pintle passes, and the jamb-leaf having perforated knuckles to receive the ends of the pintle.

My invention consists in applying a supplemental spring to one of the leaves, so arranged as to engage a pin or stop upon the other leaf.

In the drawings, Figure 1 is a side elevation showing a portion of the door and jamb with a hinge applied thereto, with my improvements applied to the hinge. Fig. 2 is a broken sectional view above the hinge, looking down upon the end of the supplemental spring and its stop. 7

In the drawings let A represent a section of the door, and B the jamb.

C represents the barrel, and D the screwplate, of the door-leaf of a hinge.

E and F represent knuckles which are integrally cast with the jamb-plates GH. Said plates are shown as fitted in the mortised seat in the jamb and secured thereto by screws. The upper jamb-plate is shown as provided with ribs g g, extending into a deeper recess or mortise I in the jamb.

J represents the supplemental spring, which is composed of a flat strip of spring metal having its upper end turned at substantially right angles to its body and its front edge inclined, beveled, or curved, as shown at i. A seat or notch is provided in the front edge to engage wit-h a stop-pin K, which is set into the substance of the barrel of the door-leaf of the hinge. The lower end of the spring J is secured to the back of the jamb-plate G between the ribs 9, and the inturned end projects through a slot or aperture cut in said plate and works in a recess in the under side of the knuckle E.

Of course instead of forming the seat in the knuckle it might be formed in the upper end of the barrel and instead of having the 6c inturned end of the spring project through an aperture in the jambplate, said plate might have a depression in its body corresponding substantially to the outlines of the recess or deepened portion of the mortise in the jamb.

In operation when the door is swung open in either direction the pin will be carried out of its seat-or notch in the inturned end of the supplemental spring and will ride upon the inclined edge on one side or the other of the seat, depending upon the direction in which the door is swung. When the door is released, it will swing back, so as to close the opening, the stop-pin riding upon the front edge of the supplemental spring until it seats itself in the notch. This will tend to restrain the door from swinging farther, and hence obviate that disagreeable feature of doubleswing doors, e., the vibration back and forth for a considerable period of time after they have been released. Of course the supplemental spring will be proportionate in strength to that of the actuating-spring of the hinge, which is in turn proportioned to the Weight of the door, but the strength of" the supplemental spring may be varied, depending upon whether it is desired to arrest the door without permitting it to swing past its normal plane when released or Whether it 0 be desired to insure its being brought to rest in position to close the opening. This supplemental spring insures the holding of the door closed normally, while it may be made to reduce a number of vibrations in the clos- 5 ing of the door, or if made stronger prevent the door swinging across its normal plane when released.

Obviously the details of construction may be considerably varied. The supplemental I00 spring might be mounted upon the door-leaf instead of upon the jamb-leaf, in which case,

of course, the pin or pro ection would be carried by the jamb-leaf, and the form and arrangement of the spring and the character of the stop may also be varied.

What I claim as new, and desire to secure by Letters Patent, is as follows:

1. A spring-hinge having a supplemental arresting spring-plate secured to one member thereof and having a portion thereof disposed in a plane at an angle to the axis of the hinge and a rigid stop secured to the other member of the hinge in a plane at an angle to that of the spring-plate and adapted to engage therewith, whereby to arrest the movement of the door in a plane at right angles to its support, substantially as described.

2. The combination with a spring-hinge, of an arresting device consisting of a springplate secured to one member of the hinge and having an end turned angularly to its body and said end having its front edge provided with a central seat or depression, said edge being beveled or inclined in both directions from said seat, and a pin or projection carried by the .other'member of the hinge and adapted to ride upon the inclined edge thereof and to seat itself in the notch of said edge, substantially as described.

8. In a spring-hinge, the combination of a jamb-leaf having a transverse aperture therein, of a flat spring having its shank secured on the rear side of said jamb-leaf and its end projected through an aperture therein, said end having its front edge provided with a central seat or depression and inclined on both sides of said seat and a hinge-barrel carrying a pin adapted to ride upon the inclined edge and to seat itself in the depression or seatof said edge, substantially as described.

EARL P. SEDGWIOK.

Witnesses:

O. O. LINTHICUM, FREDERICK G. GOODWIN. 

